Why my back hurts when I stand up?

[rexlinemouliya]

This position puts the most pressure on your spine's muscles and joints because it flattens the natural curve of your spine. Sleeping on your stomach also forces you to turn your neck, which can cause neck and upper back pain. ... If the pillow under your head causes pain, remove that pillow.

http://www.jrhealthblog.com/we-dismantled-5-myths-of-the-causes-of-...